The Right Keyword Bidding Approach
Bidding well isn't about setting one number and leaving it — it's a structured approach that combines match type, search intent, budget allocation and ongoing adjustment. Here's how to build a keyword bidding approach that actually holds up over time.
The right keyword bidding approach starts with grouping keywords by intent and match type, sets bids based on your own tracked conversion data rather than guesswork, uses negative keywords to cut wasted spend, and adjusts gradually based on performance rather than reacting to short-term swings.
Start With the Right Foundation Before Setting Any Bid
A bidding approach only works if it's built on a properly structured account. Bidding decisions made on top of a messy, unsegmented keyword list tend to compound the mess rather than fix it.
Each step in that chain depends on the one before it. Getting match type and intent grouping right first makes every bidding decision after that simpler and more accurate.
1. Choose Match Types Deliberately, Not by Default
Match type controls how closely a search has to resemble your keyword before your ad is eligible to show. Treating match type as an afterthought is one of the most common causes of wasted spend.
Exact & Phrase Tighter control, more predictable bidding
Exact and phrase match give you tighter control over which searches trigger your ad, which makes bidding decisions easier to reason about because you know roughly what you're bidding on.
Broad Wider reach, higher review overhead
Broad match can surface valuable searches you wouldn't have thought to add, but it needs closer monitoring and a stronger negative keyword list to avoid drifting spend toward irrelevant searches.
2. Bid by Search Intent, Not Just by Keyword
Two keywords that look similar on the surface can represent very different points in a searcher's decision process. Bidding the same amount on both usually means overpaying for one and underbidding the other.
Informational intent
Searchers still researching are less likely to convert immediately — bids here are usually set lower.
Comparison intent
Searchers actively comparing options are closer to a decision, which can justify a moderately higher bid.
Purchase intent
Searchers signaling clear buying intent are typically worth the highest bids, since they're closest to converting.
Brand/programme intent
Searches naming a specific programme or product usually convert well and can support a bid set with more confidence.
3. Base Bids on Your Own Tracked Data, Not Industry Averages
General benchmarks and quoted cost-per-click figures vary hugely by industry, platform, region and competition, and rarely match your actual account closely enough to bid from directly. Your own conversion data is the only reliable input for setting a bid you can defend.
- Track conversions per keyword, not just per campaign, so you know which keywords are actually earning their bid
- Calculate what a conversion is worth to you before setting a bid ceiling for that keyword
- Give new keywords a reasonable data-collection period before judging their performance
- Re-check bid levels periodically rather than setting them once and leaving them indefinitely
4. Use Negative Keywords to Protect Your Bidding Budget
Every dollar spent on an irrelevant click is a dollar not available to bid on a keyword that could actually convert. A strong negative keyword list is one of the most direct ways to make your existing budget go further without raising a single bid.
- Review search term reports regularly to catch new irrelevant queries early
- Add negatives at the account or campaign level for terms that are never relevant to any of your keywords
- Use more targeted, ad-group-level negatives for terms that are relevant to some keywords but not others
5. Allocate Budget to Where Performance Has Actually Earned It
Bidding approach and budget allocation are connected — a well-set bid on an underfunded keyword still won't get the impressions it needs to prove itself. Shifting budget toward keywords with confirmed performance is as important as the bid amount itself.
Signs a keyword earns more budget
- Consistent, tracked conversions over a reasonable period
- A conversion cost that stays within what the conversion is worth to you
- Stable or improving performance as spend increases
Signs to pull budget back
- Rising cost per conversion with no improving trend
- Consistently high spend with few or no tracked conversions
- Performance that only looked good in a very small sample
6. Know When Automated Bidding Helps — and When It Doesn't
Automated bidding strategies can be effective once there's enough conversion data for the algorithm to work with, but applying them too early, before an account has meaningful data, often produces worse results than careful manual bidding.
- Automated bidding tends to perform better with sufficient conversion volume behind it — check your platform's own guidance on minimum data thresholds
- New or low-volume campaigns often benefit from manual bidding until enough data accumulates
- Whichever approach you use, keep monitoring results rather than assuming automation removes the need for review
7. Review and Adjust on a Consistent Schedule
Bidding isn't a set-and-forget decision. Markets shift, competition changes, and a bid that made sense last month may not make sense today. A consistent review routine catches drift before it becomes a real problem.
A simple bidding review routine
- Pull performance by keyword. Compare cost, clicks and conversions over a consistent time window.
- Flag keywords drifting from target performance. Rising cost per conversion or falling conversion rate are the main signals to watch.
- Adjust bids gradually. Large, sudden bid changes make it harder to isolate what caused a shift in results.
- Update negative keywords alongside bid changes. New irrelevant search terms often surface around the same time bidding issues appear.
- Document what changed. A simple record of bid adjustments makes the next review faster and more accurate.
Common Bidding Mistakes to Avoid
- Setting one bid across very different keywords. Ignoring intent differences usually means overpaying for some clicks and underbidding others.
- Copying bid figures from general benchmark content. Industry averages rarely match your actual account closely enough to bid from directly.
- Neglecting negative keywords. Irrelevant clicks quietly drain budget that could be funding keywords that actually convert.
- Reacting to short-term swings. Small samples produce noisy results — judge performance over a reasonable window, not a single day.
- Turning on automated bidding too early. Without enough conversion data, automation has little to learn from and can underperform careful manual bidding.
- Never reviewing bids after the initial setup. A bidding approach that isn't revisited drifts out of step with actual performance over time.
Put This Bidding Approach to Work With MarketHealth
MarketHealth provides tracking links so you can measure conversions by keyword and campaign, giving you the data this bidding approach depends on. Review the programme terms for your traffic source, then create your account to get started.
Join MarketHealthFrequently Asked Questions
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A Note on This Guide
This article describes general keyword bidding principles and does not state specific bid amounts, cost-per-click benchmarks or guaranteed results, since these vary significantly by platform, industry, competition and region. Always base actual bidding decisions on your own tracked data and the tools available within your ad platform, and confirm the terms of the affiliate programme you have joined before running paid campaigns.